VWR Vwr Mat Frame 25x31 30l White PF 2531 31 W01 Unit EA. The polystyrene frame comes with an non-skid backing allowing the Intro Mat to be moved or placed on surfaces that are not ideal for tacky mats. Frames are re-useable with a 24x30 Purestep refill. Specifications for VWR Vwr Mat Frame 25x31 30l White PF 2531 31 W01: Manufacturer: Advantech Manufacturing Available quantity options: Each Color: White Package Contents: VWR Vwr Mat Frame 25x31 30l White PF 2531 31 W01 / 89097-490 The VWR Vwr Mat Frame 25x31 30l White PF 2531 31 W01 is a quality addition to the Advantech Manufacturing lineup. For more great deals on Laboratory Consumables by Advantech Manufacturing please browse our Advantech Manufacturing Laboratory Consumables page. VWR Vwr Mat Frame 25x31 30l White PF 2531 31 W01 Unit EA